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Alja [10]
3 years ago
11

Explain how one can rate the closeness of related organisms by comparing dna base sequences

Biology
1 answer:
Harman [31]3 years ago
6 0
Scientists believe we all originated from one common ancestor. using our dna base sequences, we can determine how closely related organisms by looking at when the first differing sequence occurs. for example, U U T A you can determine that
U U T T 1 and 2 are more
U U A T closely related than 1 and 3 because their dna sequence stays the same for longer. hope this helps :)
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Carbon dioxide is a ___ of cellular respiration, which occurs in the mitochondria.
MrRissso [65]

Explanation:

Carbon dioxide is a<u> product </u>of cellular respiration.

During respiration, the breakdown of glucose undergoes several steps in order to produce ATP, namely in glycolysis, the Kreb's cycle and oxidative phosphorylation.

overall: C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

Further Explanation:

In all eukaryotic cells mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced. Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate( through the process of glycolysis in the cytoplasm).

Oxidative phosphorylation describes a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water...

  • Glycolysis: occurs in the cytoplasm 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules. (2 ATP are utilized for a net ATP of 2)
  • The Citric acid or Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
  • The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular life at brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

#LearnWithBrainly

6 0
3 years ago
Please help me I really need help I am having a hard time with this question.
Reptile [31]

Answer:

I would prefer to have city water because you don't have to worry about it getting polluted unlike well water. The city water is maintained by the city while with the well water, you maintain it yourself. Even though it can be pricey, most people live in the city anyway, so there is easier access to it.

Explanation:

4 0
3 years ago
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What happens in the small intestine?
N76 [4]

Answer:

A. Water and nutrients are absorbed.

Explanation:

About 90% of water and nutrients digestion occurs in small intestine. Therefore the answer to thşs question is A.

8 0
3 years ago
Spores do not stain easily. perhaps you have seen them as unstained white objects inside bacillus species in other staining proc
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Endospore staining is used to stain the spore which reside inside the microorganisms, and unlike the exospores, are not present outside the microbial cells. The endospore stain penetrates the microbial cells, and then stain the endospore.
3 0
3 years ago
How are the dna replication products visualized during the sanger method of dna sequencing?.
n200080 [17]

The DNA replication products visualized during the sanger method of DNA sequencing are observed in which nucleotides are added.

Sanger sequencing is based on the process of DNA replication. A scientist creates a copy of his DNA strand. Then observe which nucleotides have been added. This way you can see the sequence of nucleotides. A laser excites the fluorescent labels in each band and a computer detects the resulting light.

Sanger sequencing produces extension products of various lengths ending in dideoxynucleotides at the 3' ends. Extension products are separated by capillary electrophoresis or CE. Molecules are injected by an electric current into a long glass capillary filled with gel polymer. Selective incorporation of chain-terminating dideoxynucleotides by DNA polymerases during in vitro DNA replication.

Learn more about DNA replication here:-brainly.com/question/21265857

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5 0
1 year ago
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